OMAP4: battery: capacity detection.

Capacity could be detected when it is not charging.
If charge status set to POWER_SUPPLY_STATUS_NOT_CHARGING
capacity detection path is omitted.

Add this state to let capacity detection happen.

Change-Id: I34a8295470457423d25cc2ec42e2498682339dcc
Signed-off-by: Oleksandr Kozaruk <oleksandr.kozaruk@ti.com>